On 22 May 1746 when Mary was 26, she first married Rev. Thomas Cheney (20161) , son of William Cheney (30 Jun 1663-25 Mar 1695) & Rebecca Newell (7307) (ca 1663-27 Aug 1717). Born 29 Jan 1687/8 in Roxbury, MA. Thomas was baptized on 5 Feb 1687. Thomas died in Brookfield, MA on 11 Dec 1747.

Thomas, of Brookfield.

On 13 Oct 1748 when Mary was 28, she second married Joseph Pynchon. Born on 7 Feb 1705 in Springfield, Hampden County, Massachusetts. Joseph died in Boston, MA, on 21 Oct 1765; he was 60.